2 Copyright (C) 2003, 2010 - Wolfire Games
4 This file is part of Lugaru.
6 Lugaru is free software; you can redistribute it and/or
7 modify it under the terms of the GNU General Public License
8 as published by the Free Software Foundation; either version 2
9 of the License, or (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
15 See the GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 #define UINT8 WIN32API_UINT8
25 #define UINT16 WIN32API_UINT16
26 #define boolean WIN32API_boolean
40 #define INT32 INT32_jpeg
50 static bool load_image(const char * fname, TGAImageRec & tex);
51 static bool load_png(const char * fname, TGAImageRec & tex);
52 static bool load_jpg(const char * fname, TGAImageRec & tex);
53 bool save_image(const char * fname);
54 static bool save_png(const char * fname);
57 #include "openal_wrapper.h"
59 extern float multiplier;
61 extern float realmultiplier;
63 extern bool cellophane;
64 extern float texdetail;
68 extern bool stillloading;
73 extern float slomospeed;
74 extern float slomofreq;
84 #include "MacCompatibility.h"
89 #include "win-res/resource.h"
94 SDL_Rect **resolutions = NULL;
95 static SDL_Rect rect_1024_768 = { 0, 0, 1024, 768 };
96 static SDL_Rect rect_800_600 = { 0, 0, 800, 600 };
97 static SDL_Rect rect_640_480 = { 0, 0, 640, 480 };
98 static SDL_Rect *hardcoded_resolutions[] = {
110 // statics/globals (internal only) ------------------------------------------
113 #pragma warning(push)
114 #pragma warning(disable: 4273)
117 #define GL_FUNC(ret,fn,params,call,rt) \
119 static ret (GLAPIENTRY *p##fn) params = NULL; \
120 ret GLAPIENTRY fn params { rt p##fn call; } \
129 static bool lookup_glsym(const char *funcname, void **func)
131 *func = SDL_GL_GetProcAddress(funcname);
133 fprintf(stderr, "Failed to find OpenGL symbol \"%s\"\n", funcname);
139 static bool lookup_all_glsyms(void)
142 #define GL_FUNC(ret,fn,params,call,rt) \
143 if (!lookup_glsym(#fn, (void **) &p##fn)) retval = false;
149 static void GLAPIENTRY glDeleteTextures_doNothing(GLsizei n, const GLuint *textures)
157 #define MessageBox(hwnd,text,title,flags) STUBBED("msgbox")
164 Boolean gDone = false;
166 static int _argc = 0;
167 static char **_argv = NULL;
169 bool cmdline(const char *cmd)
171 for (int i = 1; i < _argc; i++) {
172 char *arg = _argv[i];
175 if (strcasecmp(arg, cmd) == 0)
182 //-----------------------------------------------------------------------------------------------------------------------
188 glClear( GL_COLOR_BUFFER_BIT );
192 glDisable( GL_ALPHA_TEST);
193 glDisable( GL_BLEND);
194 glDisable( GL_DEPTH_TEST);
195 //glDisable( GL_DITHER);
197 glDisable( GL_LIGHTING);
198 glDisable( GL_LOGIC_OP);
199 glDisable( GL_TEXTURE_1D);
200 glDisable( GL_TEXTURE_2D);
201 glPixelTransferi( GL_MAP_COLOR, GL_FALSE);
202 glPixelTransferi( GL_RED_SCALE, 1);
203 glPixelTransferi( GL_RED_BIAS, 0);
204 glPixelTransferi( GL_GREEN_SCALE, 1);
205 glPixelTransferi( GL_GREEN_BIAS, 0);
206 glPixelTransferi( GL_BLUE_SCALE, 1);
207 glPixelTransferi( GL_BLUE_BIAS, 0);
208 glPixelTransferi( GL_ALPHA_SCALE, 1);
209 glPixelTransferi( GL_ALPHA_BIAS, 0);
211 // set initial rendering states
212 glShadeModel( GL_SMOOTH);
214 glDepthFunc( GL_LEQUAL);
215 glDepthMask( GL_TRUE);
216 //glDepthRange( FRONT_CLIP, BACK_CLIP);
217 glEnable( GL_DEPTH_TEST);
218 glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
219 glCullFace( GL_FRONT);
220 glEnable( GL_CULL_FACE);
221 glEnable( GL_LIGHTING);
222 //glEnable( GL_LIGHT_MODEL_AMBIENT);
223 glEnable( GL_DITHER);
224 glEnable( GL_COLOR_MATERIAL);
225 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
226 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
227 glAlphaFunc( GL_GREATER, 0.5f);
229 if ( CanInitStereo(stereomode) ) {
230 InitStereo(stereomode);
232 fprintf(stderr, "Failed to initialize stereo, disabling.\n");
233 stereomode = stereoNone;
237 static void toggleFullscreen()
239 if (!SDL_WM_ToggleFullScreen(SDL_GetVideoSurface())) {
240 SDL_Surface* screen = SDL_GetVideoSurface();
241 Uint32 flags = screen->flags;
242 screen = SDL_SetVideoMode(0, 0, 0, flags ^ SDL_FULLSCREEN);
244 screen = SDL_SetVideoMode(0, 0, 0, flags);
247 //reload opengl state
249 Texture::reloadAll();
260 static void sdlEventProc(const SDL_Event &e)
263 case SDL_MOUSEMOTION:
264 deltah += e.motion.xrel;
265 deltav += e.motion.yrel;
269 if ((e.key.keysym.sym == SDLK_g) &&
270 (e.key.keysym.mod & KMOD_CTRL) &&
271 !(SDL_GetVideoSurface()->flags & SDL_FULLSCREEN) ) {
272 SDL_WM_GrabInput( ((SDL_WM_GrabInput(SDL_GRAB_QUERY) == SDL_GRAB_ON) ? SDL_GRAB_OFF : SDL_GRAB_ON) );
273 } else if ( (e.key.keysym.sym == SDLK_RETURN) && (e.key.keysym.mod & KMOD_ALT) ) {
282 // --------------------------------------------------------------------------
284 static Point gMidPoint;
300 if (!SDL_WasInit(SDL_INIT_VIDEO))
301 if (SDL_Init(SDL_INIT_VIDEO) == -1) {
302 fprintf(stderr, "SDL_Init() failed: %s\n", SDL_GetError());
305 if (!LoadSettings()) {
306 fprintf(stderr, "Failed to load config, creating default\n");
309 if (kBitsPerPixel != 32 && kBitsPerPixel != 16) {
313 if (SDL_GL_LoadLibrary(NULL) == -1) {
314 fprintf(stderr, "SDL_GL_LoadLibrary() failed: %s\n", SDL_GetError());
319 SDL_Rect **res = SDL_ListModes(NULL, SDL_FULLSCREEN | SDL_OPENGL);
320 if ( (res == NULL) || (res == ((SDL_Rect **) - 1)) || (res[0] == NULL) || (res[0]->w < 640) || (res[0]->h < 480) )
321 res = hardcoded_resolutions;
323 // reverse list (it was sorted biggest to smallest by SDL)...
325 for (count = 0; res[count]; count++) {
326 if ((res[count]->w < 640) || (res[count]->h < 480))
327 break; // sane lower limit.
330 static SDL_Rect *resolutions_block = NULL;
331 resolutions_block = (SDL_Rect*) realloc(resolutions_block, sizeof (SDL_Rect) * count);
332 resolutions = (SDL_Rect**) realloc(resolutions, sizeof (SDL_Rect *) * (count + 1));
333 if ((resolutions_block == NULL) || (resolutions == NULL)) {
335 fprintf(stderr, "Out of memory!\n");
339 resolutions[count--] = NULL;
340 for (int i = 0; count >= 0; i++, count--) {
341 memcpy(&resolutions_block[count], res[i], sizeof (SDL_Rect));
342 resolutions[count] = &resolutions_block[count];
345 if (cmdline("showresolutions")) {
346 printf("Resolutions we think are okay:\n");
347 for (int i = 0; resolutions[i]; i++)
348 printf(" %d x %d\n", (int) resolutions[i]->w, (int) resolutions[i]->h);
351 Uint32 sdlflags = SDL_OPENGL;
353 if (!cmdline("windowed"))
354 sdlflags |= SDL_FULLSCREEN;
356 SDL_WM_SetCaption("Lugaru", "Lugaru");
360 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
361 SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 1);
362 #if SDL_VERSION_ATLEAST(1, 2, 10)
363 SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, vblsync);
366 if (SDL_SetVideoMode(kContextWidth, kContextHeight, 0, sdlflags) == NULL) {
367 fprintf(stderr, "SDL_SetVideoMode() failed: %s\n", SDL_GetError());
368 fprintf(stderr, "forcing 640x480...\n");
370 kContextHeight = 480;
371 if (SDL_SetVideoMode(kContextWidth, kContextHeight, 0, sdlflags) == NULL) {
372 fprintf(stderr, "SDL_SetVideoMode() failed: %s\n", SDL_GetError());
373 fprintf(stderr, "forcing 640x480 windowed mode...\n");
374 sdlflags &= ~SDL_FULLSCREEN;
375 if (SDL_SetVideoMode(kContextWidth, kContextHeight, 0, sdlflags) == NULL) {
376 fprintf(stderr, "SDL_SetVideoMode() failed: %s\n", SDL_GetError());
383 if ((SDL_GL_GetAttribute(SDL_GL_DOUBLEBUFFER, &dblbuf) == -1) || (!dblbuf)) {
384 fprintf(stderr, "Failed to get double buffered GL context!\n");
389 if (!lookup_all_glsyms()) {
394 if (!cmdline("nomousegrab"))
395 SDL_WM_GrabInput(SDL_GRAB_ON);
400 GLint width = kContextWidth;
401 GLint height = kContextHeight;
402 gMidPoint.h = width / 2;
403 gMidPoint.v = height / 2;
405 screenheight = height;
408 newscreenwidth = screenwidth;
409 newscreenheight = screenheight;
417 static void DoMouse()
420 if (mainmenu || ( (abs(deltah) < 10 * realmultiplier * 1000) && (abs(deltav) < 10 * realmultiplier * 1000) )) {
421 deltah *= usermousesensitivity;
422 deltav *= usermousesensitivity;
423 mousecoordh += deltah;
424 mousecoordv += deltav;
427 else if (mousecoordh >= kContextWidth)
428 mousecoordh = kContextWidth - 1;
431 else if (mousecoordv >= kContextHeight)
432 mousecoordv = kContextHeight - 1;
437 void DoFrameRate (int update)
439 static long frames = 0;
441 static AbsoluteTime time = {0, 0};
442 static AbsoluteTime frametime = {0, 0};
443 AbsoluteTime currTime = UpTime ();
444 double deltaTime = (float) AbsoluteDeltaToDuration (currTime, frametime);
446 if (0 > deltaTime) // if negative microseconds
447 deltaTime /= -1000000.0;
448 else // else milliseconds
451 multiplier = deltaTime;
452 if (multiplier < .001)
457 frametime = currTime; // reset for next time interval
459 deltaTime = (float) AbsoluteDeltaToDuration (currTime, time);
461 if (0 > deltaTime) // if negative microseconds
462 deltaTime /= -1000000.0;
463 else // else milliseconds
466 if (0.001 <= deltaTime) { // has update interval passed
468 time = currTime; // reset for next time interval
477 static float sps = 200;
479 static float oldmult;
485 fps = 1 / multiplier;
487 count = multiplier * sps;
491 realmultiplier = multiplier;
492 multiplier *= gamespeed;
499 multiplier *= .00001;
500 if (slomo && !mainmenu)
501 multiplier *= slomospeed;
502 oldmult = multiplier;
503 multiplier /= (float)count;
509 for (int i = 0; i < count; i++) {
512 multiplier = oldmult;
515 /* - Debug code to test how many channels were active on average per frame
516 static long frames = 0;
518 static AbsoluteTime start = {0,0};
519 AbsoluteTime currTime = UpTime ();
520 static int num_channels = 0;
522 num_channels += OPENAL_GetChannelsPlaying();
523 double deltaTime = (float) AbsoluteDeltaToDuration (currTime, start);
525 if (0 > deltaTime) // if negative microseconds
526 deltaTime /= -1000000.0;
527 else // else milliseconds
535 float avg_channels = (float)num_channels / (float)frames;
537 ofstream opstream("log.txt",ios::app);
538 opstream << "Average frame count: ";
540 opstream << " frames - ";
541 opstream << avg_channels;
542 opstream << " per frame.\n";
549 if ( stereomode == stereoNone ) {
550 DrawGLScene(stereoCenter);
552 DrawGLScene(stereoLeft);
553 DrawGLScene(stereoRight);
557 // --------------------------------------------------------------------------
565 #define GL_FUNC(ret,fn,params,call,rt) p##fn = NULL;
568 // cheat here...static destructors are calling glDeleteTexture() after
569 // the context is destroyed and libGL unloaded by SDL_Quit().
570 pglDeleteTextures = glDeleteTextures_doNothing;
574 // --------------------------------------------------------------------------
576 static bool IsFocused()
578 return ((SDL_GetAppState() & SDL_APPINPUTFOCUS) != 0);
584 // (code lifted from physfs: http://icculus.org/physfs/ ... zlib license.)
585 static char *findBinaryInPath(const char *bin, char *envr)
587 size_t alloc_size = 0;
594 ptr = strchr(start, ':'); /* find next $PATH separator. */
598 size = strlen(start) + strlen(bin) + 2;
599 if (size > alloc_size) {
600 char *x = (char *) realloc(exe, size);
611 /* build full binary path... */
613 if ((exe[0] == '\0') || (exe[strlen(exe) - 1] != '/'))
617 if (access(exe, X_OK) == 0) { /* Exists as executable? We're done. */
618 strcpy(exe, start); /* i'm lazy. piss off. */
622 start = ptr + 1; /* start points to beginning of next element. */
623 } while (ptr != NULL);
628 return(NULL); /* doesn't exist in path. */
629 } /* findBinaryInPath */
632 char *calcBaseDir(const char *argv0)
634 /* If there isn't a path on argv0, then look through the $PATH for it. */
638 const char *ptr = strrchr((char *)argv0, '/');
639 if (strchr(argv0, '/')) {
640 retval = strdup(argv0);
642 *((char *) strrchr(retval, '/')) = '\0';
646 envr = getenv("PATH");
652 retval = findBinaryInPath(argv0, envr);
657 static inline void chdirToAppPath(const char *argv0)
659 char *dir = calcBaseDir(argv0);
661 #if (defined(__APPLE__) && defined(__MACH__))
662 // Chop off /Contents/MacOS if it's at the end of the string, so we
663 // land in the base of the app bundle.
664 const size_t len = strlen(dir);
665 const char *bundledirs = "/Contents/MacOS";
666 const size_t bundledirslen = strlen(bundledirs);
667 if (len > bundledirslen) {
668 char *ptr = (dir + len) - bundledirslen;
669 if (strcasecmp(ptr, bundledirs) == 0)
680 int main(int argc, char **argv)
685 // !!! FIXME: we could use a Win32 API for this. --ryan.
687 chdirToAppPath(argv[0]);
696 //ofstream os("error.txt");
698 //ofstream os("log.txt");
704 while (!gDone && !tryquit) {
708 // check windows messages
715 while ( SDL_PollEvent( &e ) ) {
716 if ( e.type == SDL_QUIT ) {
728 // allow game chance to pause
733 // game is not in focus, give CPU time to other apps by waiting for messages instead of 'peeking'
735 SDL_WaitEvent((SDL_Event*)&evt);
736 if (evt.type == SDL_ACTIVEEVENT && evt.gain == 1)
738 else if (evt.type == SDL_QUIT)
749 } catch (const std::exception& error) {
752 std::string e = "Caught exception: ";
757 MessageBox(g_windowHandle, error.what(), "ERROR", MB_OK | MB_ICONEXCLAMATION);
767 // --------------------------------------------------------------------------
770 bool LoadImage(const char * fname, TGAImageRec & tex)
772 if ( tex.data == NULL )
775 return load_image(fname, tex);
778 void ScreenShot(const char * fname)
785 static bool load_image(const char *file_name, TGAImageRec &tex)
787 const char *ptr = strrchr((char *)file_name, '.');
789 if (strcasecmp(ptr + 1, "png") == 0)
790 return load_png(file_name, tex);
791 else if (strcasecmp(ptr + 1, "jpg") == 0)
792 return load_jpg(file_name, tex);
795 STUBBED("Unsupported image type");
800 struct my_error_mgr {
801 struct jpeg_error_mgr pub; /* "public" fields */
802 jmp_buf setjmp_buffer; /* for return to caller */
804 typedef struct my_error_mgr * my_error_ptr;
807 static void my_error_exit(j_common_ptr cinfo)
809 struct my_error_mgr *err = (struct my_error_mgr *)cinfo->err;
810 longjmp(err->setjmp_buffer, 1);
813 /* stolen from public domain example.c code in libjpg distribution. */
814 static bool load_jpg(const char *file_name, TGAImageRec &tex)
816 struct jpeg_decompress_struct cinfo;
817 struct my_error_mgr jerr;
818 JSAMPROW buffer[1]; /* Output row buffer */
819 int row_stride; /* physical row width in output buffer */
820 FILE *infile = fopen(file_name, "rb");
825 cinfo.err = jpeg_std_error(&jerr.pub);
826 jerr.pub.error_exit = my_error_exit;
827 if (setjmp(jerr.setjmp_buffer)) {
828 jpeg_destroy_decompress(&cinfo);
833 jpeg_create_decompress(&cinfo);
834 jpeg_stdio_src(&cinfo, infile);
835 (void) jpeg_read_header(&cinfo, TRUE);
837 cinfo.out_color_space = JCS_RGB;
838 cinfo.quantize_colors = 0;
839 (void) jpeg_calc_output_dimensions(&cinfo);
840 (void) jpeg_start_decompress(&cinfo);
842 row_stride = cinfo.output_width * cinfo.output_components;
843 tex.sizeX = cinfo.output_width;
844 tex.sizeY = cinfo.output_height;
847 while (cinfo.output_scanline < cinfo.output_height) {
848 buffer[0] = (JSAMPROW)(char *)tex.data +
849 ((cinfo.output_height - 1) - cinfo.output_scanline) * row_stride;
850 (void) jpeg_read_scanlines(&cinfo, buffer, 1);
853 (void) jpeg_finish_decompress(&cinfo);
854 jpeg_destroy_decompress(&cinfo);
861 /* stolen from public domain example.c code in libpng distribution. */
862 static bool load_png(const char *file_name, TGAImageRec &tex)
864 bool hasalpha = false;
865 png_structp png_ptr = NULL;
866 png_infop info_ptr = NULL;
867 png_uint_32 width, height;
868 int bit_depth, color_type, interlace_type;
869 png_byte **rows = NULL;
871 png_byte **row_pointers = NULL;
872 FILE *fp = fopen(file_name, "rb");
875 cerr << file_name << " not found" << endl;
879 png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
883 info_ptr = png_create_info_struct(png_ptr);
884 if (info_ptr == NULL)
887 if (setjmp(png_jmpbuf(png_ptr)))
890 png_init_io(png_ptr, fp);
891 png_read_png(png_ptr, info_ptr,
892 PNG_TRANSFORM_STRIP_16 | PNG_TRANSFORM_PACKING,
894 png_get_IHDR(png_ptr, info_ptr, &width, &height,
895 &bit_depth, &color_type, &interlace_type, NULL, NULL);
897 if (bit_depth != 8) // transform SHOULD handle this...
900 if (color_type & PNG_COLOR_MASK_PALETTE) // !!! FIXME?
903 if ((color_type & PNG_COLOR_MASK_COLOR) == 0) // !!! FIXME?
906 hasalpha = ((color_type & PNG_COLOR_MASK_ALPHA) != 0);
907 row_pointers = png_get_rows(png_ptr, info_ptr);
912 png_byte *dst = tex.data;
913 for (int i = height - 1; i >= 0; i--) {
914 png_byte *src = row_pointers[i];
915 for (int j = 0; j < width; j++) {
927 png_byte *dst = tex.data;
928 int pitch = width * 4;
929 for (int i = height - 1; i >= 0; i--, dst += pitch)
930 memcpy(dst, row_pointers[i], pitch);
940 cerr << "There was a problem loading " << file_name << endl;
942 png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
949 bool save_image(const char *file_name)
951 const char *ptr = strrchr((char *)file_name, '.');
953 if (strcasecmp(ptr + 1, "png") == 0)
954 return save_png(file_name);
957 STUBBED("Unsupported image type");
962 static bool save_png(const char *file_name)
965 png_structp png_ptr = NULL;
966 png_infop info_ptr = NULL;
969 fp = fopen(file_name, "wb");
973 png_bytep *row_pointers = new png_bytep[kContextHeight];
974 png_bytep screenshot = new png_byte[kContextWidth * kContextHeight * 3];
975 if ((!screenshot) || (!row_pointers))
979 glReadPixels(0, 0, kContextWidth, kContextHeight,
980 GL_RGB, GL_UNSIGNED_BYTE, screenshot);
981 if (glGetError() != GL_NO_ERROR)
984 for (int i = 0; i < kContextHeight; i++)
985 row_pointers[i] = screenshot + ((kContextWidth * ((kContextHeight - 1) - i)) * 3);
987 png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
991 info_ptr = png_create_info_struct(png_ptr);
992 if (info_ptr == NULL)
995 if (setjmp(png_jmpbuf(png_ptr)))
998 png_init_io(png_ptr, fp);
1000 if (setjmp(png_jmpbuf(png_ptr)))
1003 png_set_IHDR(png_ptr, info_ptr, kContextWidth, kContextHeight,
1004 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
1005 PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
1007 png_write_info(png_ptr, info_ptr);
1009 if (setjmp(png_jmpbuf(png_ptr)))
1012 png_write_image(png_ptr, row_pointers);
1014 if (setjmp(png_jmpbuf(png_ptr)))
1017 png_write_end(png_ptr, NULL);
1021 png_destroy_write_struct(&png_ptr, &info_ptr);
1022 delete[] screenshot;
1023 delete[] row_pointers;
1027 unlink(ConvertFileName(file_name));